HT HT712 User Manual Download | Manualshive

Page: 1 / 17

background image

©

Copyright HT ITALIA 2012

Release EN 1.02 - 23/02/2012

ENGLISH

User’s manual

1
2
3
...
»

Summary of Contents for HT712

Page 1: ... Copyright HT ITALIA 2012 Release EN 1 02 23 02 2012 ENGLISH User s manual ...

Page 2: ...ctions 6 4 3 1 Turning on 6 4 3 2 Auto power off 6 4 4 Measurements description 7 4 4 1 DC voltage measurement 7 4 4 2 AC voltage and frequency measurement with 2 test leads 8 4 4 3 AC voltage and frequency measurement with 1 test leads 9 4 4 4 Phase sequence test and phase conformity test 10 4 4 5 Resistance measurement and continuity test 12 5 MAINTENANCE 13 5 1 General information 13 5 2 Batter...

Page 3: ...ical shocks The following symbols are used Caution refer to the instruction manual an improper use may damage the instrument or its components Danger high voltage risk of electrical shocks Double insulated meter AC voltage DC voltage DC AC voltage 1 1 PRELIMINARY This instrument has been designed for use in environments of pollution degree 2 It can be used for VOLTAGE measurements on installations...

Page 4: ...ollowing measurement categories Measurement category IV is for measurements performed at the source of low voltage installations Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units Measurement category III is for measurements performed in the building installation Examples are measurements on distribution boards circuit breakers wirin...

Page 5: ...orted waves readings are different Mean value instruments provide only the value of the fundamental wave while TRMS instruments provide the value of the entire wave including harmonics within the passband of the instrument Accordingly if the same quantity is measured with both instruments the measured values are identical only if the wave is purely sinusoidal Should it be distorted TRMS instrument...

Page 6: ... instructions mentioned in paragraph 7 3 2 SUPPLY VOLTAGE The instrument is powered by batteries refer to paragraph 6 1 3 for details on model no and battery life When batteries are low a low battery indication is displayed To replace insert batteries follow the instructions indicated in paragraph 5 2 3 3 CALIBRATION The instrument complies with the technical specifications contained in this manua...

Page 7: ...layed value Press to activate or deactivate When the data HOLD function is active the symbol H is displayed 4 2 2 DISP Press key to display voltage and frequency values during AC voltage measurements 4 2 3 MEAS Press key to clear the display after phase sequence and phase conformity measurements and prepare the instrument for further operations 4 3 SPECIAL FUNCTIONS 4 3 1 Turning on When the instr...

Page 8: ...test lead respectively to the positive and negative poles of the circuit under test the voltage value will be displayed automatic range detection 4 Should you get the message O L it means that the detected voltage exceeds the limits which the instrument can measure In this case stop the measurement by disconnecting the test leads from the circuit under test to avoid risks for yourself and for the ...

Page 9: ... Fig 4 3 Connect the red probe and the black test lead to the poles of the circuit under test the voltage value will be displayed automatic range detection 4 By pressing the function key you can display the frequency value instead of the voltage one and vice versa 5 Should you get the message O L it means that the detected voltage exceeds the limits which the instrument can measure In this case st...

Page 10: ...yed automatic range detection 5 By pressing the function key you can display the frequency value instead of the voltage one and vice versa 6 Should you get the message O L it means that the detected voltage exceeds the limits which the instrument can measure In this case stop the measurement by disconnecting the test leads from the circuit under test to avoid risks for yourself and for the instrum...

Page 11: ...t the measurement For the phase rotation test 4 Connect the built in probe to the L1 phase cable or simply lean it to the insulated cable under test For the phase concordance test 4 Connect the built in probe to the L1 phase cable of the first three phase system or simply lean it to the insulated cable under test 5 When an input voltage higher than 100V is detected the buzzer beeps and the message...

Page 12: ... second measurement the instrument displays the message SEC and it s necessary to repeat all measurements again In this case press the function key and restart from step 1 12 The test result is displayed If the phases to which the probe is connected belong to the same phase the instrument displays 1 1 and lights the green LED follow the correct sequence the instrument displays 1 2 3 and lights the...

Page 13: ... 7 3 Connect the test lead to the circuit under test the resistance value will be displayed automatic range detection 4 Should you get the message O L it means that the detected voltage exceeds the limits which the instrument can measure In this case stop the measurement by disconnecting the test leads from the circuit under test to avoid risks for yourself and for the instrument 5 If the buzzer b...

Page 14: ...2 Disconnect the test leads from the input terminal 3 Take off the battery cover by unscrewing it Make a light pressure on the cover screws and unscrew them one third counterclockwise Remove the battery cover 4 Remove all batteries from the battery holder 5 Insert two new batteries of the same type refer to paragraph 6 1 3 respecting the polarity signs 6 Reposition the battery cover make a slight ...

Page 15: ...test lead Range Resolution Accuracy Input impedance 50 600V 10V 20 rdg 2dgt 1MΩ Minimum detectable input frequency 40 0 69 9Hz Crest factor max 2 On standard conditions instrument correctly gripped standard shoes standard floor etc Frequency measurement with 1 test lead Range Resolution Accuracy Input impedance 40 0 69 9Hz 0 1Hz 1 0 rdg 2dgt 1MΩ Minimum detectable input voltage 50V Crest factor ma...

Page 16: ...es is displayed when batteries voltage is too low Battery life Approximate 170 hours Display Type 3 digits LCD with max reading 3999 counts symbol and decimal point 6 2 ENVIRONMENT 6 2 1 Environmental conditions Reference temperature 23 5 C 73 41 F Working temperature 5 40 C 41 104 F Relative humidity 80 RH Storage temperature 10 60 C 14 140 F Storage humidity 70 RH This instrument complies with t...

Page 17: ...roper use including adaptation to particular applications not foreseen in the instructions manual or improper combination with incompatible accessories or equipment Repairs made necessary by improper shipping material causing damages in transit Repairs made necessary by previous attempts for repair carried out by non skilled or unauthorized personnel Instruments for whatever reason modified by the...

Reviews:

No comments

Related manuals for HT712

Brand: YOKOGAWA Pages: 3

Brand: Unipulse Pages: 129

Brand: IDEAL Pages: 11

Brand: IDEAL Pages: 16

Brand: Vega Pages: 20

Brand: Vega Pages: 16

Brand: Vega Pages: 2

GroundCast DRS611

Brand: Vaisala Pages: 12

Brand: KROHNE Pages: 56

Brand: Panasonic Pages: 1

SignalHawk SH-36S-PC

Brand: BIRD Pages: 137

Brand: RHS Pages: 8

Brand: Circutor Pages: 48

Brand: Velleman-Kit Pages: 9

Brand: Trotec Pages: 3

Brand: STATICO Pages: 21

GenTwo PMA1000V2.4

Brand: M&C Pages: 110

Brand: Aqualytic Pages: 16

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands